Pass `loglevel` down through `.ui` graphics tasks

Add `loglevel` propagation to UI graphics tasks and sampler stream
opens to enable proper console logging in chart update loops. This
ensures the graphics and FSP subsystems receive the same loglevel
as their parent and/or sibling UI-actor tasks.

Deats,
- add `loglevel` param to `graphics_update_loop()` and
  `increment_history_view()` with default `'warning'`.
- pass `loglevel` to `open_sample_stream()` calls in both fns.
- use `partial()` to pass `loglevel` through to `nurse.start_soon()`
  calls in `display_symbol_data()` and `graphics_update_loop()`.

Also logging, doc-strs, and code-style tweaks,
- change `print()` -> `log.debug()` for hidden-chart and
  interaction-pause msgs in graphics loop.
- change `log.info()` -> `log.debug()` for resize events in
  `GodWidget` and `MainWindow`.
- add multiline style to resize log msg in `GodWidget`.
- add docstring to `MainWindow.on_focus_change()`.
- moar union type annot adjustments.
- switch to explicit kwarg `period_s=` for `open_sample_stream()`
  in `increment_history_view()`.
- multiline style for `names` list in `open_fsp_actor_cluster()`.
- change `count=2` -> `count=len(names)` in
  `open_fsp_actor_cluster()`.
- add TODO about using `.experimental` for cluster import (once that
  get's patched into upstream `tractor`).
- multiline style for `or` in `FspAdmin.start_engine_task()`.
- comment-out unused `brokernames` in `ui.cli.chart()`.
- add commented breakpoint in `ui.cli.chart()`.
- fix docstring style in `OrderMode.on_submit()`.

(this commit msg was generated in some part by [`claude-code`][claude-code-gh])
[claude-code-gh]: https://github.com/anthropics/claude-code

piker/ui/_display.py

@@ -21,6 +21,7 @@ this module ties together quote and computational (fsp) streams with
 graphics update methods via our custom ``pyqtgraph`` charting api.
 
 '''
+from functools import partial
 import itertools
 from math import floor
 import time
@@ -208,6 +209,7 @@ class DisplayState(Struct):
 async def increment_history_view(
     # min_istream: tractor.MsgStream,
     ds: DisplayState,
+    loglevel: str = 'warning',
 ):
     hist_chart: ChartPlotWidget = ds.hist_chart
     hist_viz: Viz = ds.hist_viz
@@ -229,7 +231,10 @@ async def increment_history_view(
         hist_viz.reset_graphics()
         # hist_viz.update_graphics(force_redraw=True)
 
-    async with open_sample_stream(1.) as min_istream:
+    async with open_sample_stream(
+        period_s=1.,
+        loglevel=loglevel,
+    ) as min_istream:
         async for msg in min_istream:
 
             profiler = Profiler(
@@ -310,7 +315,6 @@ async def increment_history_view(
 
 
 async def graphics_update_loop(
-
     dss: dict[str, DisplayState],
     nurse: trio.Nursery,
     godwidget: GodWidget,
@@ -319,6 +323,7 @@ async def graphics_update_loop(
 
     pis: dict[str, list[pgo.PlotItem, pgo.PlotItem]] = {},
     vlm_charts: dict[str, ChartPlotWidget] = {},
+    loglevel: str = 'warning',
 
 ) -> None:
     '''
@@ -462,9 +467,12 @@ async def graphics_update_loop(
         # })
 
         nurse.start_soon(
-            increment_history_view,
+            partial(
-            # min_istream,
+                increment_history_view,
-            ds,
+                # min_istream,
+                ds=ds,
+                loglevel=loglevel,
+            ),
         )
         await trio.sleep(0)
 
@@ -511,14 +519,19 @@ async def graphics_update_loop(
                     fast_chart.linked.isHidden()
                     or not rt_pi.isVisible()
                 ):
-                    print(f'{fqme} skipping update for HIDDEN CHART')
+                    log.debug(
+                        f'{fqme} skipping update for HIDDEN CHART'
+                    )
                     fast_chart.pause_all_feeds()
                     continue
 
                 ic = fast_chart.view._in_interact
                 if ic:
                     fast_chart.pause_all_feeds()
-                    print(f'{fqme} PAUSING DURING INTERACTION')
+                    log.debug(
+                        f'Pausing chart updaates during interaction\n'
+                        f'fqme: {fqme!r}'
+                    )
                     await ic.wait()
                     fast_chart.resume_all_feeds()
 
@@ -1591,15 +1604,18 @@ async def display_symbol_data(
             # start update loop task
             dss: dict[str, DisplayState] = {}
             ln.start_soon(
-                graphics_update_loop,
+                partial(
-                dss,
+                    graphics_update_loop,
-                ln,
+                    dss=dss,
-                godwidget,
+                    nurse=ln,
-                feed,
+                    godwidget=godwidget,
-                # min_istream,
+                    feed=feed,
+                    # min_istream,
 
-                pis,
+                    pis=pis,
-                vlm_charts,
+                    vlm_charts=vlm_charts,
+                    loglevel=loglevel,
+                )
             )
 
             # boot order-mode

piker/ui/_fsp.py

@@ -183,13 +183,17 @@ async def open_fsp_sidepane(
 
 @acm
 async def open_fsp_actor_cluster(
-    names: list[str] = ['fsp_0', 'fsp_1'],
+    names: list[str] = [
+        'fsp_0',
+        'fsp_1',
+    ],
 
 ) -> AsyncGenerator[
     int,
     dict[str, tractor.Portal]
 ]:
 
+    # TODO! change to .experimental!
     from tractor._clustering import open_actor_cluster
 
     # profiler = Profiler(
@@ -197,7 +201,7 @@ async def open_fsp_actor_cluster(
     #     disabled=False
     # )
     async with open_actor_cluster(
-        count=2,
+        count=len(names),
         names=names,
         modules=['piker.fsp._engine'],
 
@@ -497,7 +501,8 @@ class FspAdmin:
 
         portal: tractor.Portal = (
             self.cluster.get(worker_name)
-            or self.rr_next_portal()
+            or
+            self.rr_next_portal()
         )
 
         # TODO: this should probably be turned into a

piker/ui/_widget.py

@@ -300,7 +300,10 @@ class GodWidget(QWidget):
         getattr(widget, 'on_resize')
         self._widgets[widget.mode_name] = widget
 
-    def on_win_resize(self, event: QtCore.QEvent) -> None:
+    def on_win_resize(
+        self,
+        event: QtCore.QEvent,
+    ) -> None:
         '''
         Top level god widget handler from window (the real yaweh) resize
         events such that any registered widgets which wish to be
@@ -315,7 +318,10 @@ class GodWidget(QWidget):
 
         self._resizing = True
 
-        log.info('God widget resize')
+        log.debug(
+            f'God widget resize\n'
+            f'{event}\n'
+        )
         for name, widget in self._widgets.items():
             widget.on_resize()
 

piker/ui/_window.py

@@ -255,8 +255,16 @@ class MainWindow(QMainWindow):
         current: QWidget,
 
     ) -> None:
+        '''
+        Focus handler.
 
-        log.info(f'widget focus changed from {last} -> {current}')
+        For now updates the "current mode" name.
+
+        '''
+        log.debug(
+            f'widget focus changed from,\n'
+            f'{last} -> {current}'
+        )
 
         if current is not None:
             # cursor left window?

piker/ui/cli.py

@@ -177,7 +177,7 @@ def chart(
             return
 
     # global opts
-    brokernames = config['brokers']
+    # brokernames: list[str] = config['brokers']
     brokermods = config['brokermods']
     assert brokermods
     tractorloglevel = config['tractorloglevel']
@@ -216,6 +216,7 @@ def chart(
                 layers['tcp']['port'],
             ))
 
+    # breakpoint()
     from tractor.devx import maybe_open_crash_handler
     pdb: bool = config['pdb']
     with maybe_open_crash_handler(pdb=pdb):

piker/ui/order_mode.py

@@ -513,13 +513,14 @@ class OrderMode:
     def on_submit(
         self,
         uuid: str,
-        order: Order | None = None,
+        order: Order|None = None,
 
-    ) -> Dialog | None:
+    ) -> Dialog|None:
         '''
         Order submitted status event handler.
 
-        Commit the order line and registered order uuid, store ack time stamp.
+        Commit the order line and registered order uuid, store ack
+        time stamp.
 
         '''
         lines = self.lines.commit_line(uuid)